chore(config): set default values for empty config fields

[pedrooot]

Context

Related with #5710

Description

This PR set the correct values for the config when it's used on the checks and the field is missing on the config.yaml file.

Checklist

• Are there new checks included in this PR? Yes / No
  • If so, do we need to update permissions for the provider? Please review this carefully.
• Review if the code is being covered by tests.
• Review if code is being documented following this specification https://github.com/google/styleguide/blob/gh-pages/pyguide.md#38-comments-and-docstrings
• Review if backport is needed.

License

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 90.11%. Comparing base (0ec3ed8) to head (2f150ae).
Report is 12 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #6225      +/-   ##
==========================================
- Coverage   93.37%   90.11%   -3.26%     
==========================================
  Files          63     1181    +1118     
  Lines        6021    36280   +30259     
==========================================
+ Hits         5622    32695   +27073     
- Misses        399     3585    +3186     

Flag	Coverage Δ
api	?
prowler	90.11% <100.00%> (?)

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Components	Coverage Δ
prowler	90.11% <100.00%> (∅)
api	∅ <ø> (∅)

[MrCloudSec]

Good job @pedrooot! Can you please change original_* to default_*, please?